IR – wide flange (ASTM A6 W)

IR 360x1086

Standard: ASTM A6 / IMCASource: SI values from the AISC v16.0 database
IR designation built from the metric W; cross-check with the IMCA Manual.
xybf = 455d = 569tf = 125tf = 125tw = 78tw = 78
Cross-section, to scaledimensions in mm

Dimensions

Depthd
569mm
Flange widthbf
455mm
Web thicknesstw
78mm
Flange thicknesstf
125mm
Distance k (design)kdes
140mm
Distance k (detailing)kdet
157mm
Distance k1k1
69.9mm
Web clear depthT
254mm
Distance between flange centroidsho
444mm

Mass and area

Mass per lengthm
1,090kg/m
Cross-sectional areaA
139,000mm²

Strong axis x–x

Moment of inertiaIx
5,95010⁶ mm⁴
Elastic section modulusSx
21,00010³ mm³
Plastic section modulusZx
27,20010³ mm³
Radius of gyrationrx
208mm

Weak axis y–y

Moment of inertiaIy
1,96010⁶ mm⁴
Elastic section modulusSy
8,64010³ mm³
Plastic section modulusZy
13,40010³ mm³
Radius of gyrationry
119mm

Torsion and stability

Torsional constantJ
604,00010³ mm⁴
Warping constantCw
97,20010⁹ mm⁶
Effective radius of gyrationrts
144mm

Slenderness ratios

Flange slendernessbf/2tf
1.82
Web slendernessh/tw
3.71

Equivalents in other standards